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Table 2 Characteristics of the study population in 2014

From: Trends in prevalence, mortality, health care utilization and health care costs of Swiss IBD patients: a claims data based study of the years 2010, 2012 and 2014

n (%) Total IBD Non-IBD p a
  n = 1,125,050 n = 4812 n = 1,120,238  
Female sex 581,598 (51.7) 2695 (56.0) 578,903 (51.7) <0.001
Age
 Total (mean, SD) 44.0 (23.5) 54.8 (18.0) 43.9 (23.5) <0.001
 Men (mean, SD) 42.3 (22.8) 54.2 (17.5) 42.2 (22.8)  
 Women (mean, SD) 45.5 (24.0) 55.4 (18.5) 45.5 (24.0)  
Language areab
 German 840,900 (74.7) 3778 (78.5) 837,122 (74.7) <0.001
 French 209,719 (18.6) 687 (14.3) 209,032 (18.7)  
 Italian 74,413 (6.6) 347 (7.2) 74,066 (6.6)  
Type of residence (urban area) 874,640 (77.7) 3799 (78.9) 870,841 (77.7) 0.04
Chronic conditions (median, IQR) 0.0 (2.0) 3.0 (3.0) 0.0 (2.0) <0.001
Home care nursing dependency 30,669 (2.7) 285 (5.9) 30,384 (2.7) <0.001
Health insurance plan
 Managed care 649,992 (57.8) 2340 (48.6) 647,652 (57.8) <0.001
 Higher deductible 308,642 (27.4) 522 (10.8) 308,120 (27.5) <0.001
 Accident coverage 677,107 (60.2) 2871 (60.0) 674,236 (60.2) ns
 Supplementary hospital insurance 208,661 (18.5) 1020 (21.2) 207,641 (18.5) <0.001
Purchasing power
 1 (high) 224,750 (20.0) 956 (19.9) 223,794 (20.0) ns
 2 223,464 (19.9) 942 (19.6) 222,522 (19.9)  
 3 224,857 (20.0) 961 (20.0) 223,896 (20.0)  
 4 222,979 (19.8) 984 (20.4) 221,995 (19.8)  
 5 (low) 229,000 (20.4) 969 (20.1) 228,031 (20.4)  
  1. a p-values, assigning the differences between the IBD and non-IBD populations, were calculated using fisher’s exact test for dichotomous variables, using Wilcoxon rank sum test for continuous, and using chi-squared test for categorical variables; ns = not significant
  2. bRhaeto-Romanic area is assigned to the German area